Fred Hayner vs. John McDonald — Career Comparison

On the career pitching numbers, John McDonald posted a stronger line than Fred Hayner. John McDonald posted stronger numbers in ERA (9 vs 13.5) and WHIP (2.333 vs 3.000). By the career numbers, John McDonald had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.